I hope this helps you
d/t=r
d=r.t
Answer:
A has a rate of change of -5 and is greater than Bs -4.5
First, solve the parenthesis
Remember to follow PEMDAS, and the left-> right rule
12/3 = 4
4 x 2 = 8
8 + 3 = 11
11 - 7 = 4
Square the remaining number
4² = 4 x 4 = 16
16 is your answer
hope this helps